Benchmark: JSON Stringify Speed Test

Tests:

1
const a = { alpay: 5 }; JSON.stringify(a);
2
const a = {}; for (let i = 0; i < 100; i++) { a[i] = i; } JSON.stringify(a);

Historical Performance Data aggregated from 251 community runs

Desktop Results:

Chrome 207 runs

9.1M/s

233K/s

Fastest: 1 (39.0x faster)

View exact numbers

✓ 1: 9,084,361 ops/sec
• 2: 232,769 ops/sec

Firefox 29 runs

7.4M/s

509K/s

Fastest: 1 (14.6x faster)

View exact numbers

✓ 1: 7,407,931 ops/sec
• 2: 509,106 ops/sec

Mobile Results:

Chrome 9 runs

5.5M/s

109K/s

Fastest: 1 (50.7x faster)

View exact numbers

✓ 1: 5,520,768 ops/sec
• 2: 108,796 ops/sec

Safari 6 runs

12.7M/s

185K/s

Fastest: 1 (68.7x faster)

View exact numbers

✓ 1: 12,731,152 ops/sec
• 2: 185,332 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
1
2

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36

Browser/OS: Chrome 148 on Windows

View result in a separate tab

18.5M/s

162K/s

View exact numbers

Test name	Executions per second
✓ 1	18,484,342 Ops/sec
2	161,910 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

I'd be happy to explain what's being tested in the provided JSON benchmark.

The goal of this benchmark is to measure the speed of `JSON.stringify()` for objects of varying sizes. The test consists of two individual test cases:

1. **Simple Object**: The first test case creates a simple object with a single property (`alpay` with value 5) and measures the time it takes to stringify the entire object.
2. **Nested Object**: The second test case creates an object with 100 properties, where each property is assigned a value from 0 to 99 using a `for` loop. This creates a nested object with multiple levels of nesting.

The benchmark aims to determine if the speed of `JSON.stringify()` changes as the size of the object increases.

Now, let's discuss the options compared:

**Options being compared:**

1. **Simple Object**: The first test case uses a simple object with a single property.
2. **Nested Object**: The second test case uses an object with 100 properties, creating a nested structure.

**Pros and Cons of each approach:**

* **Simple Object**:
	+ Pros: Easy to create and measure, provides a baseline for comparison.
	+ Cons: May not accurately represent real-world use cases, where objects are often more complex.
* **Nested Object**:
	+ Pros: Simulates real-world scenarios where objects have multiple levels of nesting.
	+ Cons: More computationally expensive to create and measure due to the larger object size.

Other considerations:

* The benchmark does not account for potential variations in JavaScript engine optimizations or caching that may affect performance.
* The use of a `for` loop to create the nested object introduces additional complexity, which may impact performance compared to other methods (e.g., using an array literal).

Now, regarding libraries and special JavaScript features:

There are no notable libraries mentioned in the provided benchmark definition.

As for special JavaScript features, there is no specific syntax or feature being tested. However, if we consider the use of `JSON.stringify()` itself as a special case, it's worth noting that this function has some edge cases and nuances (e.g., handling non-serializable objects).

JSON Stringify Speed Test (version: 0)

This benchmark tests whether the speed or JSON.stringify changes with object size

Comparing performance of: `1 vs 2`

Created: 5 years ago by: Guest

Go to the latest result

1

2

Historical Performance Data aggregated from 251 community runs

Desktop Results:

Chrome 207 runs

Firefox 29 runs

Mobile Results:

Chrome 9 runs

Safari 6 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

JSON Stringify Speed Test (version: 0)

This benchmark tests whether the speed or JSON.stringify changes with object size

Comparing performance of: 1 vs 2

Created: 5 years ago by: Guest

Go to the latest result

1

2

Historical Performance Data aggregated from 251 community runs

Desktop Results:

Chrome 207 runs

Firefox 29 runs

Mobile Results:

Chrome 9 runs

Safari 6 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

Related benchmarks

Comparing performance of: `1 vs 2`